#logo {
    width: 140px;
    height: 140px;
    margin: 20px auto;
    background: url(../img/timg.jpg) no-repeat 0px 0px/140px 150px;
    border-radius:70px;
}
#errorMsg{
    color:red;
    margin-top:160px;
}

fieldset {
    border: 0px;
}

@media screen and (min-width:992px){
    .login_block{
        width:500px;
        margin:auto;
    }
}